[Qemu-devel] [PATCH] ui: Use XkbGetMap and XkbGetNames instead of XkbGetKeyboard

["Daniel P. Berrange" <berrange@redhat.com>]

XkbGetKeyboard does not work in XWayland and even on non-Wayland
X11 servers its use is discouraged:

  https://bugs.freedesktop.org/show_bug.cgi?id=89240

This resolves a problem whereby QEMU prints

  "could not lookup keycode name"

on startup when running under XWayland. Keymap handling is
however still broken after this commit, since Xwayland is
reporting a keymap we can't handle

  "unknown keycodes `(unnamed)', please report to qemu-devel@nongnu.org"

NB, native Wayland support (which is the default under GTK3) is
not affected - only XWayland (which can be requested with GDK_BACKEND
on GTK3, and is the only option for GTK2).

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
---
 ui/gtk.c |  7 ++++---
 ui/sdl.c | 10 ++++++----
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/ui/gtk.c b/ui/gtk.c
index f21e9e7..6eb56e9 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -2200,11 +2200,12 @@ static void gd_set_keycode_type(GtkDisplayState *s)
     GdkDisplay *display = gtk_widget_get_display(s->window);
     if (GDK_IS_X11_DISPLAY(display)) {
         Display *x11_display = gdk_x11_display_get_xdisplay(display);
-        XkbDescPtr desc = XkbGetKeyboard(x11_display, XkbGBN_AllComponentsMask,
-                                         XkbUseCoreKbd);
+        XkbDescPtr desc = XkbGetMap(x11_display, XkbGBN_AllComponentsMask,
+                                    XkbUseCoreKbd);
         char *keycodes = NULL;
 
-        if (desc && desc->names) {
+        if (desc &&
+            (XkbGetNames(x11_display, XkbKeycodesNameMask, desc) == Success)) {
             keycodes = XGetAtomName(x11_display, desc->names->keycodes);
         }
         if (keycodes == NULL) {
diff --git a/ui/sdl.c b/ui/sdl.c
index 19e8a84..37c21a0 100644
--- a/ui/sdl.c
+++ b/ui/sdl.c
@@ -233,10 +233,12 @@ static int check_for_evdev(void)
     if (!SDL_GetWMInfo(&info)) {
         return 0;
     }
-    desc = XkbGetKeyboard(info.info.x11.display,
-                          XkbGBN_AllComponentsMask,
-                          XkbUseCoreKbd);
-    if (desc && desc->names) {
+    desc = XkbGetMap(info.info.x11.display,
+                     XkbGBN_AllComponentsMask,
+                     XkbUseCoreKbd);
+    if (desc &&
+        (XkbGetNames(info.info.x11.display,
+                     XkbKeycodesNameMask, desc) == Success)) {
         keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
         if (keycodes == NULL) {
             fprintf(stderr, "could not lookup keycode name\n");
-- 
2.9.3